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Cheap flights from Ireland to Belfast from €40

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belfast departing on 23/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Ireland to Belfast

Recent return flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:05 - 10:00
ORK
-
BFS
12h 55m
1 stop
Multiple Airlines Logo
22:00 - 11:35
BFS
-
ORK
13h 35m
1 stop
€85Multiple Airlines
Mon, 6 Jul - Sun, 12 Jul
Multiple Airlines Logo
21:05 - 10:00
ORK
-
BFS
12h 55m
1 stop
Multiple Airlines Logo
08:40 - 20:40
BFS
-
ORK
12h 00m
1 stop
€86Multiple Airlines
Mon, 6 Jul - Mon, 13 Jul
Multiple Airlines Logo
07:30 - 15:20
DUB
-
BFS
7h 50m
1 stop
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
€86Multiple Airlines
Thu, 9 Jul - Wed, 15 Jul
Multiple Airlines Logo
21:05 - 10:00
ORK
-
BFS
12h 55m
1 stop
Multiple Airlines Logo
08:40 - 20:40
BFS
-
ORK
12h 00m
1 stop
€87Multiple Airlines
Mon, 6 Jul - Mon, 13 Jul
Multiple Airlines Logo
21:05 - 10:00
ORK
-
BFS
12h 55m
1 stop
Multiple Airlines Logo
08:40 - 20:40
BFS
-
ORK
12h 00m
1 stop
€89Multiple Airlines
Mon, 6 Jul - Mon, 13 Jul
Multiple Airlines Logo
07:30 - 15:20
DUB
-
BFS
7h 50m
1 stop
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
€89Multiple Airlines
Thu, 9 Jul - Wed, 15 Jul
Multiple Airlines Logo
21:05 - 10:00
ORK
-
BFS
12h 55m
1 stop
Multiple Airlines Logo
22:00 - 11:35
BFS
-
ORK
13h 35m
1 stop
€89Multiple Airlines
Mon, 6 Jul - Sun, 12 Jul
Multiple Airlines Logo
15:45 - 22:20
DUB
-
BFS
6h 35m
1 stop
Multiple Airlines Logo
07:30 - 20:45
BFS
-
DUB
13h 15m
1 stop
€89Multiple Airlines
Thu, 16 Jul - Wed, 22 Jul
Multiple Airlines Logo
08:30 - 22:20
SNN
-
BFS
13h 50m
1 stop
Multiple Airlines Logo
15:40 - 23:35
BFS
-
SNN
7h 55m
1 stop
€90Multiple Airlines
Thu, 30 Jul - Wed, 5 Aug
Multiple Airlines Logo
08:00 - 21:15
ORK
-
BFS
13h 15m
1 stop
Multiple Airlines Logo
21:55 - 08:05
BFS
-
ORK
10h 10m
1 stop
€90Multiple Airlines
Sat, 11 Jul - Mon, 13 Jul

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British Airways flights from Ireland to Belfast

Our best British Airways deals on Ireland to Belfast flight tickets
British Airways
3 Aug
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
10 Aug
BHD19:35Belfast City
12h 10m
1 stop
DUB07:45Dublin
€223
British Airways
9 Jul
DUB08:35Dublin
7h 05m
1 stop
BHD15:40Belfast City
15 Jul
BHD19:40Belfast City
12h 05m
1 stop
DUB07:45Dublin
€224
British Airways
9 Jul
DUB10:30Dublin
5h 10m
1 stop
BHD15:40Belfast City
15 Jul
BHD18:20Belfast City
13h 25m
1 stop
DUB07:45Dublin
€225

Aer Lingus flights from Ireland to Belfast

Our best Aer Lingus deals on Ireland to Belfast flight tickets
Aer Lingus
24 Jul
DUB06:30Dublin
7h 20m
1 stop
BHD13:50Belfast City
1 Aug
BHD11:05Belfast City
7h 30m
1 stop
DUB18:35Dublin
€279
Aer Lingus
23 Jun
DUB18:50Dublin
15h 00m
1 stop
BHD09:50Belfast City
26 Jun
BHD18:20Belfast City
21h 10m
1 stop
DUB15:30Dublin
€380
Aer Lingus
6 Jul
ORK19:20Cork
22h 25m
1 stop
BHD17:45Belfast City
12 Jul
BHD11:10Belfast City
12h 40m
1 stop
ORK23:50Cork
€428

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 8 June 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 6/7

21:05-10:00

1 stop12h 55m

Belfast Intl

Sun 12/7

22:00-11:35

1 stop13h 35m

€85

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 6/7

21:05-10:00

1 stop12h 55m

Belfast Intl

Mon 13/7

08:40-20:40

1 stop12h 00m

€86
Fastest return journey

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 9/7

07:30-15:20

1 stop7h 50m

Belfast Intl

Wed 15/7

15:40-21:30

1 stop5h 50m

€86

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 6/7

21:05-10:00

1 stop12h 55m

Belfast Intl

Mon 13/7

08:40-20:40

1 stop12h 00m

€87

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 6/7

21:05-10:00

1 stop12h 55m

Belfast Intl

Mon 13/7

08:40-20:40

1 stop12h 00m

€88

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 9/7

07:30-15:20

1 stop7h 50m

Belfast Intl

Wed 15/7

15:40-21:30

1 stop5h 50m

€88

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 6/7

21:05-10:00

1 stop12h 55m

Belfast Intl

Sun 12/7

22:00-11:35

1 stop13h 35m

€89

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 16/7

15:45-22:20

1 stop6h 35m

Belfast Intl

Wed 22/7

07:30-20:45

1 stop13h 15m

€89

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Thu 30/7

08:30-22:20

1 stop13h 50m

Belfast Intl

Wed 5/8

15:40-23:35

1 stop7h 55m

€90

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sat 11/7

08:00-21:15

1 stop13h 15m

Belfast Intl

Mon 13/7

21:55-08:05

1 stop10h 10m

€90

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ireland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Belfast?

The average flight duration from Ireland to Belfast depends on which airport you fly into and out of. Flying from Cork to Belfast Intl Airport is 3h 15m on average, while flying from Dublin to Belfast Intl Airport is 5h 30m on average. Belfast Intl Airport is the most popular airport in Belfast.

Cheap Ireland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belfast

Fastest flight time

3h 15m

Direct flights

None
The fastest flight from Ireland to Belfast takes 3h 15m
There are no direct flights from Ireland to Belfast. There are no popular flight routes from Ireland to Belfast.
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Frequently asked questions about flying from Ireland to Belfast

  • When did momondo last update prices for flights from Ireland to Belfast?

    Prices for flights from Ireland to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Ireland to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Belfast . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Belfast?

Once all potential Ireland to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 19.6 km from Belfast
Belfast Intl Airport
Belfast City Airport